Reference Source

2-Ethoxyethanol — CAS 110805 — workplace exposure limit

What is the pel (ppm) for 2-Ethoxyethanol — CAS 110805 — workplace exposure limit?

For 2-Ethoxyethanol, pel (ppm) is disputed: 5 per dir.ca.gov, 200 per osha.gov; pel (mg/m³) is disputed: 18 per dir.ca.gov, 740 per osha.gov; cas no. is 110805, verified against its source on 2026-09-29.

110805 | S | 2-Ethoxyethanol | 5 | 18

— dir.ca.gov, retrieved 2026-08-05

5
The most of this substance workplace air may legally contain, averaged over an 8-hour shift — OSHA's permissible exposure limit (PEL), in parts per million, from the agency's own table row quoted below. Where federal OSHA and Cal/OSHA disagree, both limits are stated, each with its own agency's table row as evidence. NIOSH's number, where there is one, is shown separately: it is a recommended limit, not a legal one, and it is often the strictest of the three.
Sourcedir.ca.gov
Verified
Review by
DatasetUS workplace chemical exposure limits: federal OSHA, Cal/OSHA and NIOSH, side by side
Substance
2-Ethoxyethanol verified
CAS No.
110805 verified
PEL (ppm)
5 sources disagree
PEL (mg/m³)
18 sources disagree
NIOSH REL (ppm)
TWA 0.5 per cdc.gov
NIOSH REL (mg/m³)
1.8 per cdc.gov

What cdc.gov says

NIOSH REL TWA 0.5 ppm (1.8 mg/m3) [skin]

— cdc.gov, retrieved 2026-09-08

Substance

CDC - NIOSH Pocket Guide to Chemical Hazards - 2-Ethoxyethanol

CAS No.

CAS No. 110-80-5

The same source also states

110805 | S | Ethylene glycol monoethyl ether, see 2-Ethoxyethanol

— dir.ca.gov, retrieved 2026-08-05

The same source also states

110805 | | Glycol monoethyl ether; see 2-Ethoxyethanol

— dir.ca.gov, retrieved 2026-08-05

Sources disagree

More than one authority states this, and they do not state the same thing. Both are reproduced with the source each came from — deciding between them is yours, not ours.

PEL (ppm)

dir.ca.gov says pel (ppm) is 5, as of 2026-08-05.

110805 | S | 2-Ethoxyethanol | 5 | 18

https://www.dir.ca.gov/title8/5155.html

osha.gov says pel (ppm) is 200, as of 2026-08-05.

2-Ethoxyethanol (Cellosolve) | 110-80-5 | 200 | 740 | X |

https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1

PEL (mg/m³)

dir.ca.gov says pel (mg/m³) is 18, as of 2026-08-05.

110805 | S | 2-Ethoxyethanol | 5 | 18

https://www.dir.ca.gov/title8/5155.html

osha.gov says pel (mg/m³) is 740, as of 2026-08-05.

2-Ethoxyethanol (Cellosolve) | 110-80-5 | 200 | 740 | X |

https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1

Sources

Last verified against source: . Due for re-check by . This page as Markdown · OKF bundle · full dataset as JSON.

What is the OSHA exposure limit for this substance?Find the exposure limit for a substance in workplace air — federal OSHA, California and NIOSH, side by side.

More on workplace safety and hazardous materials

All 26 datasets on this subject · Look something up